Noteworthy Wednesday Option Activity: GM, SIVB, ALGN
May 15, 2019 at 15:40 PM EDT
Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in General Motors Co (GM), where a total volume of 44,062 contracts has been traded thus far today, a contract volume which is representative of approximately 4.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 46.9% of GM's average daily trading volume over the past month, of 9.4 million shares..